Method and system for managing user port in link aggregation

Abstract

The invention provides a method and a system for managing a user port in link aggregation. The method comprises the following steps that: transmission equipment at a sending end informs transmission equipment at a receiving end of state information of the failed user port in a virtual concatenation group at the sending end; and after knowing the failed user port at the sending end, the transmission equipment at the receiving end closes the user port at the receiving end, which has service connection with the failed user port. The scheme can be compatible with a CSF transmitting mode in a transparent transmission state and also can support the corresponding CSF transmitting mode in a link aggregation transmission state. The invention has the advantages of improving the service connection management capability of the system, ensuring the service connectivity, improving the intelligent level of the equipment, more contributing to the operation, management and maintenance of the equipment, along with simpleness, practicality and few requirements on hardware resources of the equipment.

Description

technical field [0001] The present invention relates to the field of optical transmission technology, in particular to a method and system for user port management in aggregation links. Background technique [0002] The purpose of the Generic Framing Procedure (GFP) encapsulation protocol is to byte-align the signal from the client, and map the variable-length payload data to a byte-synchronous transmission path for transmission. The GFP protocol It is one of the main encapsulation protocols used by Ethernet Over SDH (Ethernet Over SDH, referred to as EOS; SDH is called Synchronous Digital Hierarchy) equipment in the current synchronous digital series. [0003] In the optical transmission process, the GFP protocol provides a mechanism to send a client signal failure (Client Signal Fail, CSF for short) indication to the receiving end when the sending end detects that the input signal fails, and the sending end sends a client management frame ( The load type is identified as ...

AI Technical Summary

Problems solved by technology

[0008] The following is the normal process. If the signal failure of user port 1 occurs, according to the GFP protocol, the sending end sends a CSF signal to the receiving end, and the receiving end sends a client signal invalidation statement to the upper layer after receiving it. When port 4 receives the CSF signal, it does not know which port of the sending end has failed. User port 3 and user port 4 continue to send service data. At this time, the service data sent by user port 3 to user port 1 will be lost.

In the prior art, the processing method of some receiving end transmission equipment is to close all the receiving ports connected to the receiving end transmission equipment when receiving CSF. figure 1 In this case, the transmission equipment at the receiving end closes both user ports 3 and 4, and the services of user port 3 and user port 4 will all be interrupted, which directly affects the normal communication with user port 2 and user port 4. business

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